Clutch



July 28, `1925.

F. M. JOSLIN CLUTCHv Filed March 29; 1920 2 Sheets-Sheet l July 2s, 1925. l 1,548,007

F. M. JosLlN CLUTCH Pleci NalCvh 29, 1920 2 Sheets-Sheet 2 an 2. v

Y Patented July 28, 1925.

unifi-:n.1sT'aTEsaPfATENTr. oriicr1;y i

,FRANK mfaosmiv;ormivrs'rnitnemfnnwf YonmfAssiGNORiTO'VINMAN MANU-FAO: TUBING.'OOMPAiyYy-'Iivczg-"OrjAMSTERDAM, NEW YORK; .a CORPORATION or NEW I iro-RK.4 n

CLUTCH. i

Application meanarcii 29,1920. serial- No. 369,490:

To all/whom it may-concern? f 1 Be it knownfthat I, FianNKfM. Josniiy, citizen of the` `Unitedf States, :and Amsterdam, Montgomery Gounty.; New' Ork, have invented fcertain,Y new.-V and useful Improvements in Clutches, Vof which theifollowing is a specification..

This inventionl relates'lrto a clutch -mechar l nism which' is primarily rir'iteiided"for'l use` in lofeonnection with machine fonmaking boxes from1pasteboard-- or: similar: material.

It is-the yaim ofthe invention to .provide a mechanism: of thekindA mentionedI bywhichprede ma shafty inaywbeff-.driven'so'ftliat at I*termined intervals the driving means2 will be momentarily 'disconnected from the shaft and to provide means-controlled by the driv-V ingl means 'for' vrestoring thefconnection beey y tween `such arfts.Y The invention-further contemplates fvarious fimproveinentsf @mythe Y details of the mechanismiby which"A these results are accomplished.l In box mak-ing ma-` chines-, which employ 1a' coopera-tive lplunger and die toforfmfthe boXes,it is desirable that ltheplunger'.be caused to'sftop for short inter? vals- 'at certain points in. .its .travel Iand 'theaccomplishment of this lresultfis al primary object of the invention.y It is to be under-v stood, however, that `fthe :invention is not Llimited to the particular use here mentioned nor to the particular details set forth but that it is capable of'employment in various relations and. with various modifications as' to particular details.

in thefaccompanying `drawings in which:

Figure lfis a sideA elevationf-ofa part of a bo'Xy machine with which the invention is particularly:intended ftobe used;

402 Figure '2 'is 'v aftransverse vsectional, view on I of Figurez, showingJ the finechanismff of the i present :invention vinv the broken line 2 2 -`Figure A6 is a side viewfoffcertainrepartsi ofal frictionfmechanism-employed in con-l nectionl with the vr presentlinvention `g and ,residing yat 1 State; of

Th'efinventionr is illustrated yin one form gear wheel 18.

is a longitudinal sectional tvfi'ewf:

v f o A engagement(with:.said-projections. l isaview mainly elevation of.- be noted Ythat.thefidogf22 Yprojects aV slight.y

onef the parts *of the I mechanism,1certain:A

Vthe broken` lshown in Figure 6.

Referringto t-he "drawings in detail 101in.

dicates a shaft which is driven.continuouslyl y -lfrom any suitable source of power, this sha-ft* inthe particular mechanism disclosedcoristitutingp.partofthe lbox ymaking machine. This' shaft -is suitably journaledl on the` frame 11 ,constituting :pait,-of the 'frameworkfof thema'chine. f A secondshaft12, alsojour-.

i naled -in the frame4 11, isarrangedadjacent lthe shaft 10. 'Ay crankl disk A1% is secured to` the end of the shaft 12 land. isprovidedwith 1 Aa crank pin 14 to wvhichfa rackbar 15 is se-V '-cured, the rotationofsaid crank -disk serv- -ing to give a reciprocatmg motionfto said` rack bara.`I By Vsuitable mechanism, the .de-.A tails of which form no partv of this invention t and which it isV unnecessary to describe, the. 'movements' of said` rack bar cause theplun-,-`

vger 1 6 of the box machine to enter and recede from the Olie 17. yItisrthe, aim ofthe present A.mechanismto cause said plunger to -pause at certain points inits travel so as to permit adjustment of the materialion whichy the plunger is operatedor permit other oper-k ations to be performed..r

A.Referring to thefdetails `of the clutchy mechanism, andparticularly 'to'iFigures 2 and '3 off the ydrawing-,it will .be noted that the shaft 10 is provided witha gearfwheel- 18 rigidlysecuredthereto. A rotary member 19 is loosely-mounted on theshafti12, said.

rotary memberl being lprovided Vwith. gearv teeth whichcooperate `with the=teeth of the i gThe rotary.v member 19 ,oir-90 its end-'opposite the' gear teeth is provided with a: seriesofi-projections.20, for a purpose hereinafter pointed out. A disk 21 is keyed to the 'sha-ft 12 andv saidydiskcarries j a dog-22 pivotally connected thereto,-said.=95

dog-.being positioned .to engage .the .projeCr-y tions/2O upon-titherotary member119. A

coiled spring23isarrangedto bear on-'said dog- ;gin ordery -toY yieldingly hold the same in distanceybeyori'd` 'one side -.of -the `Idisk 21,'.- said Presentlrappea.. loosely moun'd upon i, the,

It 4will these pins being in such position as to contact with the projecting portion of the 'dog heretofore referred to with the result that as the disk 21 rotates the dog 22 Will contact with said pins 25 and said pins are so positioned that such contact will result in forcing the dog out of engagement with the projections 2O of the rotary member 19. The member 24 is constantly urged toward the disk 21 by means of a coiled spring 26 surrounding the shaft 12.

Means are provided for moving the member 24 along the shaft 12in order to withdraw the pins 25 from the path of movement of the dog 22, such means comprising a lever 27 pivoted to said member 24 and to a fixed part 28 of the machine. The shaft 10 lras secured thereto a sleeve 10a which carries a cam disk 29 on Which a series of cam blocks 30 are mounted, the disk being provided With a series of slots 31 in which said cam blocks may be adjusted. The lever 27 is provided with a roller 32 which is adapted to cooperate with the cam disk 29 and the cam blocks mounted thereon, the result being that as said disk is caused to rotate by the rotation of shaft 10, the lever is caused to move about its pivot on the part 28 Which causes movement of said member 24 longitudinally of the shaft 12.

Secured to the shaft 12 is a friction drnm 33 Which is engaged by a friction band 34, the ends of this band being held together by a bolt 35 by which the amount of friction may be regulated. It is to be understood that this friction mechanism constitutes the means for holding the shaft 12 from rotation during the intervals that it is disconnected from the driving means.

- The operation of the device will be clear from the foregoing description and a brief re-statement of the same Will suffice. The shaft 10 being constantly driven Will cause constant rotation of the rotary member 19 loosely mounted on the shaft 12. The disk 21 being secured to the shaft 12, it follows that said disk and the shaft to Which it is secured will be caused to rotate when the dog 22 is in engagement with the projections 20 on said rotary member 19, but that the shaft and disk will cease to rotate When the dog is Withdrawn from said projections. The pins 25, mounted on the slidable member 24 cause the dog to be Withdrawn from said projections at certain points in the rotation of the shaft 12. Through the operati-on of the cam disk 29 and the cam blocks mounted thereon the lever 27 is caused to move the slidable member 24 against the action of the spring 26, which movement serves to Withdraw the pins 25 from the path of movement of the projecting portion 22L of the dog 22, thus permitting the dog to engage the projections on the member 19 When rotation of the shaft 12 continues. rl`he length of time during Which the pins 25 hold the dog 22 out of engagement With the projections on the rotary member 19 can be regulated by be caused to remain stationary at certain intervals during its travel toward and from the die.

Having thus described the invention,

What is claimed :as new and desiredto be secured by Letters Patent is:

1. A device of the kind described comprising a shaft, a disk secured thereto, a rotary member mounted in operative relation to said disk and having la; series of projections thereon, means for continuously driving said rotary member, a dog pivotally mounted on said disk -in position to engage the projections on said rotary member thereby causing rotation of said shaft, means for disengaging said dog from said projections at predetermined points in the rotation of the shaft, said last named means including a cam disk openated by Vsaid driving means and having a plurality of cam blocks a'djustably mounted thereon.

2. A device of the kind described comprising a shaft, a disk secured thereto, a rotary member mounted in operative relation to said disk and having a series of projections thereon, means for continuously driving said rotary member, a spring pressed dog mounted on said disk in position to engage the projections on said rotary member thereby causing rotation of said shaft, a movable member having pins adapted to contact with said dog during the rotation of said disk and Withdraw the same from engagement with said projections, and means operated by said driving means for moving said pins out of Contact with said dog thereby permitting the same to re-engage said projections on the rotary member, said last named means including a cam disk having a plurality of cam blocks adjustably mounted thereon.

3. A device of vthe kind described comprising a driving shaft having a gear Wheel thereon, a driven shaft, a disk vsecured to said driven shaft, a rotary member loosely mounted on said driven shaft and having a series of projections thereon, and also having gear teeth thereon cooperating with the gear Wheel of said driving shaft, a spring-pressed dog 'mounted on said disk in position to engage said project-ions on the rotary member, a

movable member slidably mounted on said driven shaft and having a series of pins arranged to Contact With said dog during rotation of said disk to Withdraw the same from engagement with said proj ections, resilient means tending to hold said movable 4. A device of the kind described com-l prising a shaft, a disk secured thereto, a rotary member loosely mounted on said shaft in operative relation to said disk, and having a series of projections thereon, means for continuo-usly driving said rotary member, a dog pivotally mounted on said disk in position to engage said rotary member, a movable member slidably mounted on said shaft and having a device thereon adapted to contact With said dog during the rotation of said disk and Withdraw the same from engagement With said projections, means for moving said movable member to disengage said device from said dog, said last mentioned means being controlled bysaidgdriving means. l

5. A device of the kind described com"- prising a driving shaft having a gear Wheel thereon, a driven shaft, a disk secured to said driven shaft, a rotary member loosely mounted on said driven shaft and having a series of projections thereon, and also having gear teeth thereon cooperating with the gear Wheel of said driving shaft, a dog the projections of inovably mounted on said disk in position to engage said projections on the rotary member, a movable member slidably mounted on said driven shaft and having devices arranged to contact With said dog during rotation of said disk to Withdraw the same from engagement with said projections, means tending to hold said movable member in posit-ion to cause said devices to engage said dog, means for moving said movable member to disengagesaid devices from said dog, said last named means comprising a Cain-disk secured to said driving shaft, and a lever having one end secured to said movable member and having at the other end a" Vpart arranged to engage the cam on said cam disk.

, 6. A device of the kind described comprising a driving shaft having a gear Wheel thereon, a driven shaft., a disk secured to said driven shaft, a rotary member loosely mounted on said driven shaft and having a series of projections thereon, means operated from said driving shaft for continuously rotating said rotary member, a dog movably mounted on said'disk in position to engage said projections on the rota-ry member, a movable member slidably mounted on said driven shaft and having devices arranged to contact- With said dog during rotation of said disk to Withdraw the same from engagement with said projections, means tending to hold said movable member in position to cause ,said devices to engage said dog, means for moving said movable member to disengage said devices from said dog, said last named means comprising a cam-disk, operated by said driving shaft, and means operated by said cam-disk for moving said movable member to disengage said devices from said door.

In testimony whereof I aliiX my signature.

FRANK M. J OSLIN. 

